not trying to hate but i have a set of bbk's that came off a 95 imp sitting right here next to my computer desk and they look slightly different to the ones you are selling.
your passenger side header does not have the same upward curve on the primary tubes like mines does. see attached pics.
above is driver side header that looks a bit different from yours too
the location for your egr tube is not correct
Just something to look into my friend. like i said i'm not trying to hate on you and you may have infact had those headers on your car but i know for a fact i pulled these from an impala. maybe the reason you burned you ac lines was because these are not quite right? these headers only burned the oil and antifreeze the guy spilled on them, the a/c lines were just fine.